(19)
(11) EP 0 313 778 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
06.06.1990 Bulletin 1990/23

(43) Date of publication A2:
03.05.1989 Bulletin 1989/18

(21) Application number: 88114740.9

(22) Date of filing: 09.09.1988
(51) International Patent Classification (IPC)4: B41M 5/26, B41M 5/24
(84) Designated Contracting States:
DE FR GB

(30) Priority: 30.10.1987 US 115471

(71) Applicant: International Business Machines Corporation
Armonk, N.Y. 10504 (US)

(72) Inventors:
  • Afzali-Ardakani, Ali
    White Plains. N.Y. 10603 (US)
  • Desai, Mukesh
    Fishkill, N.Y. 12524 (US)
  • Factor, Bradford J.
    Palo Alto Calif. 94306 (US)
  • Hoekstra, Jan-Pieter
    Carmel, N.Y. 10512 (US)
  • Pennington, Keith S.
    Somers, N.Y. 10589 (US)

(74) Representative: Mönig, Anton, Dipl.-Ing. 
IBM Deutschland Informationssysteme GmbH, Patentwesen und Urheberrecht
D-70548 Stuttgart
D-70548 Stuttgart (DE)


(56) References cited: : 
   
       


    (54) Production of printing master plate or printed circuit board


    (57) An improved apparatus and process are described in which metal images are transferred to a softenable receiving layer (32) using commercially available multi-stylus recording heads (10). The transfer medium is comprised of a resistive layer (16) and a thin metal layer (14) thereon. Electrical currents are provided by the recording styli (18) of the multi-­stylus recording head. Localized electrical currents in the resistive layer (16) provide sufficient heat in the metal layer (14) to soften regions of a meltable receiving layer (32) when it is brought into contact with said heated metal layer. Metal imaging for use in printed circuit board manufacture and in formation of printing masters can be transferred by this technique.







    Search report